dc coeffieient and hi8>DV at DVinfo.net

Go Back   DV Info Net > Windows / PC Post Production Solutions > What Happens in Vegas...

What Happens in Vegas...
...stays in Vegas! This PC-based editing app is a safe bet with these tips.


Reply
 
Thread Tools Search this Thread
Old July 5th, 2012, 06:02 PM   #1
Regular Crew
 
Join Date: Feb 2007
Location: Colorado
Posts: 104
dc coeffieient and hi8>DV

I'm making a DVD from a marginal source hi8 capped in DV.
I believe the dc coefficient default is 9 but read to use 10.
What is the dc coefficient and should I use 8, 9, or 10 when dealing with hi8>DV>mpg?
Thx
__________________
"Shoot first and ask questions later"
Art Willig is offline   Reply With Quote
Old July 6th, 2012, 05:25 AM   #2
Major Player
 
Join Date: Dec 2007
Location: London, UK
Posts: 277
Re: dc coeffieient and hi8>DV

I won't pretend to fully understand the complex technical explanations of how MPG compression works. Wikipedia, doom9 and videohelp.com should be great starting points if you want a deeper understanding.

The crude bottom line is that higher DC Precision = Higher quality of encoding, BUT it requires a higher bitrate. So if you use a high precision setting with too low a bitrate you may actually end up with worse quality.

The general consensus AFAIK is to use 10 for bitrates > 6000, 9 for bitrates 4000-6000, 8 for <4000.
Of course you should probably make your own tests...
Jon Shohet is offline   Reply With Quote
Old July 11th, 2012, 03:51 PM   #3
Regular Crew
 
Join Date: Feb 2007
Location: Colorado
Posts: 104
Re: dc coeffieient and hi8>DV

Thanks for the explaination. I used 10 for mpgs at 8000 kbps and it's a bit clearer (no pun intended).
__________________
"Shoot first and ask questions later"
Art Willig is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Windows / PC Post Production Solutions > What Happens in Vegas...

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 07:20 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network